DnD from treeview with multiple rows selected

[Colossus <colossus 3000 it>]

Hi,

I'm trying to implement XDS protocol to my app, xarchiver. I have two 
rows selected in the treeview, when I drag these two rows and drop 
them in Thunar file manager, everything goes wrong. When I drop only
one row it works. So my question is: how to retrieve the content of 
the rows selected ? Here is some code:

static const GtkTargetEntry drag_targets[] =
{
  { "XdndDirectSave0", 0, 0 },
};

static const GtkTargetEntry drop_targets[] =
{
  { "text/uri-list", 0, 1 },
};

 gtk_drag_dest_set 
(MainWindow,GTK_DEST_DEFAULT_ALL,drop_targets,1,GDK_ACTION_COPY | 
GDK_ACTION_MOVE | GDK_ACTION_LINK | GDK_ACTION_ASK);

 gtk_drag_source_set (treeview1, GDK_BUTTON1_MASK, drag_targets, 
1,GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK | GDK_ACTION_ASK);

void drag_begin (GtkWidget *treeview1,GdkDragContext *context, 
gpointer data)
{
    GtkTreeSelection *selection;
    GtkTreeIter       iter;
    gchar            *name;
    GList            *row_list, *_row_list;

        g_print ("Drag begin\n");
	//gtk_drag_source_set_icon_name (treeview1,DATADIR 
"/pixmaps/xarchiver.png" );
    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview1));

        row_list = gtk_tree_selection_get_selected_rows (selection, NULL);
        if ( row_list == NULL )
                return;

        while (row_list != NULL)
        {
                gtk_tree_model_get_iter(model, &iter, (GtkTreePath*)(row_list->data));
            gtk_tree_model_get (model, &iter, 0, &name, -1);
                g_print ("%s\n",name);
                gchar *no_slashes = StripPathFromFilename ( name, "/" );
                no_slashes++;

                gdk_property_change (context->source_window,
                                       gdk_atom_intern ("XdndDirectSave0", FALSE),
                                           gdk_atom_intern ("text/plain", FALSE), 8,
					       GDK_PROP_MODE_REPLACE, (guchar *)no_slashes, strlen 
(no_slashes) );

                row_list = row_list->next;
                g_free (name);
        }
        g_list_foreach (row_list, (GFunc) gtk_tree_path_free, NULL);
        g_list_free (row_list);
}

void drag_data_get (GtkWidget *widget, GdkDragContext *dc, 
GtkSelectionData *selection_data, guint info, guint t, gpointer data)
{
        GtkTreeSelection *selection;
        GtkTreeIter iter;
        guchar *fm_path;
        int fm_path_len;
        gchar *command , *dummy_path , *name;
        gchar *to_send = "E";
        GList *row_list, *_row_list;

        g_print ("Drag data get\n");
        selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview1));
	row_list = _row_list = gtk_tree_selection_get_selected_rows 
(selection, NULL);
        if ( row_list == NULL )
                return;

        while (_row_list != NULL)
        {
                gtk_tree_model_get_iter(model, &iter, (GtkTreePath*)(_row_list->data));
                gtk_tree_model_get (model, &iter, 0, &name, -1);
                if ( gdk_property_get (dc->source_window,
                                                        gdk_atom_intern ("XdndDirectSave0", FALSE),
                                                        gdk_atom_intern ("text/plain", FALSE),
                                                        0, 1024, FALSE, NULL, NULL, &fm_path_len, &fm_path)
                                                        && fm_path != NULL)
                {
                    /* Zero-Terminate the string */
                fm_path = g_realloc (fm_path, fm_path_len + 1);
                        fm_path[fm_path_len] = '\0';
                        //g_print ("fm_path = %s\n",fm_path);
                        dummy_path = g_filename_from_uri ( (gchar*)fm_path, NULL, NULL );
                        g_free ( fm_path );
                        //g_print ("%s - %s\n",dummy_path,name);
                        extract_path = extract_local_path ( dummy_path,name );
                        //g_message ("%s -- %s -- %s",dummy_path,name,extract_path);
                        g_free ( dummy_path );
                        if (extract_path != NULL)
                                to_send = "S";
                    names = g_string_new ("");
	        gtk_tree_selection_selected_foreach (selection, 
(GtkTreeSelectionForeachFunc) ConcatenateFileNames, names );
                        archive->full_path = 0;
                        archive->tar_strip_value = 0;
                        command = xa_extract_single_files ( archive , names, extract_path );
                        g_string_free (names, TRUE);
                        if ( command != NULL )
                {
                        ExtractAddDelete ( command );
                            g_free (command);
                }
                    //g_dataset_set_data (dc, "XDS-sent", to_send);
	        gtk_selection_data_set (selection_data, 
selection_data->target, 8, (guchar*)to_send, 1);
            }
                if (extract_path != NULL)
                        g_free (extract_path);
                extract_path = NULL;
                g_free (name);
                _row_list = _row_list->next;
        }
        g_list_foreach (row_list, (GFunc) gtk_tree_path_free, NULL);
        g_list_free (row_list);
}

The current code is on svn if someone wants to compile the entire app 
(it is small):

$ svn co http://svn.xfce.org/svn/xfce/xarchiver/trunk

Any help is greatly appreciated !

Giuseppe Torelli
--
Xarchiver, a Linux GTK+2 only archive manager - http://xarchiver.xfce.org
Cpsed, a Linux OpenGL 3D scene editor - http://cpsed.sourceforge.net
Mizio, a QT proxy hunter scanner tool - http://mizio.sourceforge.net